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"Kokoro Shinryaku Robot" is a song composed and by Hinata Haruhana. The song was first published on February 28th 2011 sung by Kagamine Rin / Kagamine Len, and illustrated by 7:24; however the original video has been removed both in Nico Nico Douga and YouTube (7:24's fanmade PV of the song is still available in Nico Nico Douga.

On April 9th 2011 the "piano ver" of the song is uploaded; sung by Hinata Haruhana and illustrated by Butler of the Hinata Family. On September 20th 2012, another version sung by Kagamine Rin and Len, with video by Hinata Haruhana, is uploaded.